General ABHA18L, ABHA18LATN, AOHA18LACL, ABHA18LA, ABHA18LAT Service Manual
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SPLIT TYPE
ROOM AIR CONDITIONER
FLOOR CONSOLE /
UNDER CEILING
DUAL type
Models
Indoor unit
ABHA18LATN
ABHA24LATN
Outdoor unit
AOHA18LACL
AOHA24LACL
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . .
OUTLINE AND DIMENSIONS . . . . . . . . . . .
REFRIGERANT SYSTEM DIAGRAM . . . . .
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . .
PCB CIRCUIT DIAGRAM . . . . . . . . . . . . . . .
ERROR DISPLAY . . . . . . . . . . . . . . . . . . . .
DISASSEMBLY ILLUSTRATION . . . . . . . .
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . .
ACCESSORIES . . . . . . . . . . . . . . . . . . . . .
1
2
5
6
8
13
15
28
30
SPECIFICATIONS
TYPE COOL & HEAT INVERTER
INDOOR UNIT ABHA18LATN
OUTDOOR UNIT AOHA18LACL
COOLING CAPACITY 5.20 kW
HEATING CAPACITY 6.00 kW
ELECTRICAL DATA
POWER SOURCE 230 V
FREQUENCY 50 Hz
RUNNING CURRENT
INPUT WATTS
E.E.R. COOLING 3.21 kW/kW
COP HEATING 3.61 kW/kW
MOISTURE REMOVAL 1.7 L/hr
AIR CIRCULATION HIGH 780 m3/hr
COOLING 7.1 A
HEATING 7.3 A
COOLING 1.62 kW
HEATING 1.66 kW
ABHA24LATN
AOHA24LACL
7.10 kW
8.00 kW
230 V
50 Hz
9.7 A
9.7 A
2.21 kW
2.21 kW
3.21 kW/kW
3.61 kW/kW
2.7 L/hr
980 m3/hr
COMPRESSOR
TYPE
DISCRIMINATION DA130A1F-25NA
REFRIGERANT R410A 1,250 g
Hermetic type, 4 pole, 3 phase,
DC inverter motor, Rotary
FAN MOTOR
POWER SOURCE 230 V
INDOOR UNIT
( cool / heat )
OUTDOOR UNIT
HIGH-SPEED
MED-SPEED
LOW-SPEED
QUIET 740 / 740 r.p.m.
1,040 / 1,040 r.p.m.
950 / 950 r.p.m.
800 / 800 r.p.m.
860 / 820 r.p.m.
DIMENSIONS
INDOOR UNIT
OUTDOOR UNIT
H x W x D
H x W x D
199 x 990 x 655 mm
578 x 790 x 300 mm
WEIGHT
INDOOR UNIT
OUTDOOR UNIT 44 kg / 40 kg
Gross / Net
Gross / Net
36 kg / 27 kg
DA150A1F-20NA
1,700 g
230 V
1,330 / 1,300 r.p.m.
1,150 / 1,150 r.p.m.
1,000 / 1,000 r.p.m.
780 / 780 r.p.m.
1,050 / 1,050 r.p.m.
578 x 790 x 315 mm
48 kg / 44 kg
NOISE LEVEL
INDOOR UNIT ( cool / heat )
OUTDOOR UNIT ( cool / heat ) 50 dB / 50 dB
REFRIGERANT (R410A)
Pipe Length
FULL CHARGE
ADDITIONAL REFRIGERANT
2006.10.26 1
15 m
20 m
43 dB / 43 dB
1,250 g
1,350 g
20 g/m
48 dB / 48 dB
52 dB / 53 dB
1,700 g
1,800 g
20 g/m
OUTLINE AND DIMENSIONS
INDOOR UNIT
Unit : mm
655
(rear view)
990
500
199
200175
530
900
2006.10.16 2
OUTDOOR UNIT
AOHA18LACL
Unit : mm
Top view
30066790
578
10
347
Front view
Side view
540
Air flow
320
184
121
Drain pipe
Bottom view
4- 10mm hole
mounting place
( 20)
2006.10.26 3
177
189
OUTDOOR UNIT
AOHA24LACL
Unit : mm
Top view
31566790
578
10
347
Front view
Side view
540
Air flow
320
184
121
Drain pipe
Bottom view
4- 10mm hole
mounting place
( 20)
2006.10.26 4
177
189
REFRIGERANT SYSTEM DIAGRAM
OUTDOOR UNIT
Heat exchanger
INDOOR UNIT
Muffler
3-Way
valve
Muffler
4-Way
valve
Heat exchanger
Accumulator
Compressor
Cool
Heat
: THERMISTOR (COMPRESSOR TEP.)
: THERMISTOR (DISCHARGE TEP.)
: THERMISTOR (HEAT EXCHANGER MED TEP.)
: THERMISTOR (HEAT EXCHANGER OUT TEP.)
: THERMISTOR (OUTDOOR TEP.)
Refrigerant pipe diameter
ABHA18LATN / AOHA18LACL
Liquid : 1/4" (6.35 mm)
Gas : 1/2" (12.70 mm)
ABHA24LATN / AOHA24LACL
Liquid : 1/4" (6.35 mm)
Gas : 5/8" (15.88 mm)
Expansion
valve
StrainerStrainer
2-Way
valve
: THERMISTOR (PIPE TEP.)
: THERMISTOR (ROOM TEP.)
2006.10.26 5
CIRCUIT DIAGRAM
INDOOR UNIT
STEP MOTOR
STEP MOTOR
M
M
1
2
3
4
5
1
2
3
4
5
BROWN
1
2
ORANGE
3
YELLOW
4
5
BROWN
1
2
ORANGE
3
YELLOW
4
5
RED
WHITE
RED
WHITE
1
1
CN5 CN7
1
1
2
2
3
3
CN12
4
4
5
5
CONTROLLER
1
1
2
2
3
3
4
4
5
5
1
2
3
1
2
PCB ASSY
( MAIN PCB )
CN11
CN9
CN10
123 4 5 6 7 8
123 4 5 6 7 8
BLACK
BLACK
2
2
1
2
1
1 2
1 1
2
2
CN8
CN4 CN1
123
123
2
GRAY
GRAY
BLACK
BLACK
PIPE TEMP.
THERMISTOR
ROOM TEMP.
THERMISTOR
1
2
CN3
3
RED
1
1
ORANGE
2
2
YELLOW
3
3
WHITE
4
4
BLUE
CN13CN14
5
5
PURPLE
6
6
GRAY
7
7
RED
1
1
WHITE
2
2
BLACK
3
3
1
2
3
4
5
6
7
8
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
TERMINAL
1
2
CN6
1 2 3
TO REMOTE CONTROL UNIT
( OPTION )
INDICATOR PCB ASSY
FAN MOTOR
F M
GREEN /
YELLOW
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
123 4 5 6 7 8
123 4 5 6 7 8
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
BROWN
YELLOW
WHITE
BLACK
RED
1
2
3
4
5
6
1
2
3
4
5
6
E101
CN104
POWER SUPPLY
PCB ASSY
CN105
E102
FUSE 3.15A
CN102 CN103
123
250V
2
1
GRAY
GRAY
123
123
CN101
W105
W102
W101
CN108
1 2
GRAY
RED
WHITE
BLACK
1
2
CN106
1 2
TERMINAL
3
TO OUTDOOR UNIT
GREEN
GREEN
2006.10.17 6
OUTDOOR UNIT
PIPE TEMPERATURE
THERMISTOR
DISCHARGE PIPE
TEMPERATURE THERMISTOR
COMPRESSOR
TEMPERATURE THERMISTOR
PIPE ( MID )
TEMPERATURE THERMISTOR
OUTDOOR TEMPERATURE
THERMISTOR
WHITE
FUSE 250V 5A
BLACK
BLACK
REACTOR
YELLOW
YELLOW
12
2
1
FUSE 250V 20A
BLACK
RED
WHITE
BLACK
BLACK
BROWN
BROWN
BROWN
BROWN
BLACK
BLACK
BLACK
BLACK
WHITE
BLACK
W10
W11
1
1
2
2
CN71
3
3
4
4
121
CN73
2
CONTROLLER PCB ASSY
CN72
CN70
( MAIN PCB )
FUSE
15A 250V
FUSE
3.15A
250V
RED
GREEN
121
1
2
3
2
1
2
3
W4
W2
W1
W3
S (S)
F M
FAN MOTOR
EXPANSION
PMV
VALVE
4WV
VALVE
R (R)
C M
RED
RED
W7
WHITE
W8
BLACK
W9
RED
1
1
2
2
BLACK
3
3
CN801
CN40
CN30 4-WAY
WHITE
4
4
YELLOW
5
5
BLUE
6
6
RED
1
1
BROWN
2
2
BLUE
3
3
ORANGE
4
4
YELLOW
5
5
WHITE
6
6
BLACK
1
1
2
2
BLACK
3
3
1
1
2
3
WHITE
2
3
BLACK
COMPRESSOR
C (T)
TERMINAL
2
1 3 L
N
( N )
TO INDOOR UNIT
POWER SOURCE
2006.11.14 7
INDOOR PCB CIRCUIT DIAGRAM
CONTROL UNIT
ABHA18LATN : EZ-00607HSE
ABHA24LATN : EZ-00603HSE
3
2(N)
1
TERMINAL BOARD
UL1015 AWG20 BLACK
CN8
CN8-1
CN8-2
CN7-1
CN7-2
CN5-1
CN5-2
B2B-XASK-1-A
CN7
B2B-XAYK-1-A
ROOM TEMPERATURE THERMISTOR
GRAY
GRAY
PIPE TEMPERATURE THERMISTOR ( ENTRANCE )
PIPE TEMPERATURE THERMISTOR ( MID )
BLACK
BLACK
CN5
B2B-XAKK-1-A
INDICATOR PCB
CN13
B07B-PASK-1
CN13-1
CN13-2
CN13-3
CN13-4
CN13-5
CN13-6
CN13-7
UL1015 AWG20 WHITE
UL1015 AWG20 RED
RED
ORANGE
YELLOW
WHITE
BLUE
PURPLE
GRAY
1
2
3
4
5
6
7
8
CN201
S08B-PASK-2
1
2
3
4
5
6
7
8
K04E1-0600HSE-D0
CN201-1
CN201-2
CN201-3
CN201-4
CN201-5
CN201-6
CN201-7
CN201-8
DC FAN MOTOR
F M
OUTDOOR UNIT
UL1015 AWG16
UL1015 AWG16
DC FAN MOTOR
1
2
3
4
5
6
7
8
DRAIN PUMP
B2P3-VH-B-E
GREEN
GREEN
CN105
B5P6-VH-B
RED
BLACK
WHITE
YELLOW
BROWN
CN106
E101
E102
CN105-6
CN105-5
CN105-4
CN105-3
CN105-2
CN105-1
CN106-1
CN106-2
W101 W102
W105
POWER SUPPLY PCB
K06AL-0600HSE-P0
CN104-1
CN104-2
CN104-3
CN104-4
CN104-5
CN104-6
CN104-7
CN104-8
CN101-1
CN101-2
CN101-3
POWER DRIVE
CN104
B08B-PASK-1
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
DC SUPPLY
CN101
B03B-PASK-1
EMI FILTER
POWER DRIVE
B08B-PASK-1
DC SUPPLY
B03B-PASK-1
GRAY
GRAY
GRAY
CN4
CN1
CONTROLLER PCB ASSEMBLY
( MAIN PCB )
ABHA18LATN : K06AK-0603HSE-C1
ABHA24LATN : K06AK-0600HSE-C1
CN4-1
CN4-2
CN4-3
CN4-4
CN4-5
CN4-6
CN4-7
CN4-8
CN1-1
CN1-2
CN1-3
CN14-1
CN14-2
CN14-3
CN6-1
CN6-2
REMOTE
CN14
B3B-XAKK-1-A
RED
WHITE
BLACK
FRESH AIR
CN6
B02B-PAMK-1
TERMINAL BOARD
EARTH WIRE
REMOTE CONTROL UNIT
UL1430 AWG22 BLACK
UL1430 AWG22 WHITE
3 2 1
UL1430 AWG22 RED
EIB OUT
CN103
B2B-XH-AM
CN103-1
CN103-2
FLOAT SWITCH
B03B-XARK-1-A
EIB I N
CN102
B3B-XH-AM
CN102-1
CN102-2
CN102-3
2006.10.26 8
CN9
CN9-1
CN9-2
CN9-3
CN11-1
CN11-2
CN11-3
CN11-3
CN11-4
CN11-5
CN12-1
CN12-2
CN12-3
CN12-3
CN12-4
CN12-5
CN11
B05B-XASK-1-A
BROWN
RED
ORANGE
YELLOW
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
CN12
B05B-XARK-1-A
LOUVER
U - D
LOUVER
L - R
CONTROLLER PCB ASSEMBLY
ABHA18LATN : K06AK-0603HSE-C1
ABHA24LATN : K06AK-0600HSE-C1
IC1
UPD78F0535GK
(R)-012-UET-A
2006.10.26 9
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